Alert archive / Nevada / Winter Weather Advisories in 2021

Winter Weather Advisory 1, NWS Las Vegas, NV

January 22, 2021Esmeralda County, Lincoln County, Nye County, Nevada

NWS Las Vegas, NV issued this winter weather advisory at Jan 22, 2021, 7:41 PM PST for Esmeralda County, Lincoln County, Nye County, Nevada. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jan 22, 2021, 7:41 PM PST (03:41 UTC)
Expired
Jan 23, 2021, 2:35 AM PST
In force
7 hr
Issued by
NWS Las Vegas, NV

Counties Esmeralda County, NV, Lincoln County, NV, Nye County, NV

The nearest sounding before it

Las Vegas, NV (KVEF), launched 00:00Z, 3.7 hours before the alert went out and 175 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 00:00Z on 2021-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2021-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
13 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1670 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this winter weather advisory went out at Jan 22, 3:47 PM PST, 3 hours 54 minutes earlier.

Area forecast discussion, Jan 22, 3:47 PM PST, 3 hours 54 minutes before
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The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 23, 2:35 AM PSTWinter Storm WatchVEFClark, Lincoln, Nye25 hr
Jan 23, 2:35 AM PSTWinter Weather AdvisoryVEFClark, Esmeralda, Nye3 days
Jan 23, 1:38 PM PSTWinter Storm WatchVEFInyo48 hr
Jan 23, 1:44 PM PSTWind AdvisoryVEFSan Bernardino53 hr

Nearby

Winter Weather Advisories in Nevada, 2021Every winter weather advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.